Home / 144,547.51-216,728.79-69,518.23

Finding the Fourth Proportional to 144,547.51, 216,728.79 and 69,518.23

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Solution

The fourth proportional to 144,547.51, 216,728.79 and 69,518.23 is: 104,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,547.51 : 216,728.79 = 69,518.23 : x
  2. Step 2: Convert to fraction form
    144,547.51/216,728.79 = 69,518.23/x
  3. Step 3: Cross multiply
    144,547.51x = 216,728.79 × 69,518.23
  4. Step 4: Simplify right side
    144,547.51x = 15,066,601,870.84
  5. Step 5: Solve for x
    x = 15,066,601,870.84/144,547.51
  6. Step 6: Final answer
    x = 104,232.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.